I am using a Pentium 4 computer with 2 GB RAM and 120 GB HDD. Recently my computer has infected with several virus and they are causing me much trouble when booting. That why I tried the windows installation CD to repair or restore the system. I thought that the MBR might be corrupted. My HDD was fine and also the RAM. When I was trying to repair OS the CD installs the complete new XP alongside the old version of XP. I donít get any problem with this installation because the original OS was working without any issues. So I edited the boot menu, so that I no longer needed the options for multiple OS. But when I look in looked into the windows folders there are 3 folders naming windows, windows0 and windows1 along with their respective documents and settings. It is taking much extra space from HDD and I am running out of space now. So I need to delete those folders without touching my good and working version of OS and all its corresponding settings and document. So any idea about this? If you give me a good solution I will be much appreciated.